Zac - add an hp radio?
he's really darn squishy, and almost needs to be built full tank to survive, making him deal no damage. he doesnt have enougth cc to allow him to be viable doing no damage. so at least allow him to deal some damage via a hp radio somewhere in his kit
I'd suggest maybe placing it on his q, which is currently: 70 / 110 / 150 / 190 / 230 (+ 50% AP) and a weak slow for two seconds.
to allow him to do something lategame, i'd change that to 70 / 105 / 140 / 175 / 210 (+ 50% AP) (+5% bonus hp)
This will make him break even at 400 bonus health, and get more lategame, which he does deserve at his current state of unviability.
what do you think?